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ACR33U-A1 SmartDuo Reference Manual
Version 1.00
Page 15 of 56
www.acs.com.hk
Offset
Field
Size
Value
Description
13
bWaitingIntegerT
0
1
00-
FFh
WI for T=0 used to define WWT
14
bClockStop
1
00
-
03h
ICC Clock Stop Support
00h
= Stopping the Clock is not
allowed
01h
= Stop with Clock signal Low
02h
= Stop with Clock signal High
03h
= Stop with Clock either High or
Low
Protocol Data Structure for Protocol T=1 (dwLength=00000007h)
Offset
Field
Size
Value
Description
10
bmFindexDindex
1
B7-4 – FI – Index into the table 7 in
ISO/IEC 7816-3:1997 selecting a clock
rate conversion factor
B3-0 – DI - Index into the table 8 in
ISO/IEC 7816-3:1997 selecting a baud
rate conversion factor
11
BmTCCKST1
1
B7-2 –
000100b
B0 – Checksum type (b0=0 for LRC,
b0=1 for CRC
B1 – Convention used (b1=0 for direct,
b1=1 for inverse) Note: The CCID
ignores this bit.
12
BGuardTimeT1
1
00-
FFh
Extra Guardtime (0 to 254 etu between
two characters). If value is
FFh
, then
guardtime is reduced by 1 etu.
13
BwaitingIntegerT
1
1
00-
9Fh
B7-4 = BWI values
0-9
valid
B3-0 = CWI values
0-Fh
valid
14
bClockStop
1
00-
03h
ICC Clock Stop Support
00h
= Stopping the Clock is not
allowed
01h
= Stop with Clock signal Low
02h
= Stop with Clock signal High
03h
= Stop with Clock either High or
Low
15
bIFSC
1
00-
FFh
Size of negotiated IFSC
16
bNadValue
1
00h
Only support NAD =
00h
The response to this message is the
RDR_to_PC_Parameters
message.
